CN106849468B - Liquid cooling servo motor and manufacturing process thereof - Google Patents
Liquid cooling servo motor and manufacturing process thereof Download PDFInfo
- Publication number
- CN106849468B CN106849468B CN201710116104.2A CN201710116104A CN106849468B CN 106849468 B CN106849468 B CN 106849468B CN 201710116104 A CN201710116104 A CN 201710116104A CN 106849468 B CN106849468 B CN 106849468B
- Authority
- CN
- China
- Prior art keywords
- shell
- inner bushing
- bushing
- wall
- stator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 39
- 239000007788 liquid Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 238000003466 welding Methods 0.000 claims abstract description 44
- 238000003754 machining Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000002826 coolant Substances 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000000498 cooling water Substances 0.000 description 4
- 230000008093 supporting effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910001095 light aluminium alloy Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/14—Casings; Enclosures; Supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/06—Cast metal casings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a liquid cooling servo motor, which comprises a shell and a stator, wherein a cooling groove is integrally formed on the inner wall of the shell, the liquid cooling servo motor also comprises an inner bushing which is made of high-strength and high-heat conductivity materials and is arranged between the shell and the stator, the inner bushing is cylindrical, the shell and the inner bushing are integrally welded and fixed through a preset welding route along the inner wall of the inner bushing, so that a continuous cooling channel for cooling medium circulation is formed by surrounding the outer peripheral surface of the inner bushing and the cooling groove, and an integral component fixing ring formed by the shell and the inner bushing is sleeved on the outer periphery of the stator. The liquid cooling servo motor is easier to control the machining precision, reasonable in working procedure, better in sealing performance and higher in strength.
Description
Technical Field
The invention belongs to the field of motors, and particularly relates to a liquid cooling servo motor and a manufacturing process thereof.
Background
In the prior art, in order to reduce the temperature rise of the motor and ensure the motor to work normally and stably, a cooling device is mostly installed on the servo motor, wherein the liquid cooling servo motor is widely used because of noiselessness and high cooling efficiency, such as a servo motor for driving an electric automobile and other servo motors for vehicles. The liquid cooling devices adopted by the liquid cooling servo motor in the prior art are all fixed on the shell of the motor by adopting an integrated structure. One of the two most commonly used mounting modes is to fix an outer sleeve with a cooling water channel on a motor shell by adopting an integral hollow casting mode through a hot jacket and the like, but water leakage phenomenon is inevitably generated due to air holes generated by aluminum alloy casting, so that the normal operation of the motor is influenced; and because of casting precision problem, the possibility of generating eccentricity is great, and the reliability is bad. In addition, the outer sleeve with the cooling water channel is directly welded on the shell of the motor, but the welding points are always exposed, so that the appearance is affected, and when only two ends of the cooling water channel are welded with the shell of the motor, the cooling water channel cannot bear high water pressure, the middle part is easy to bulge, and the overall strength is also reduced.
Disclosure of Invention
Aiming at the defects, the invention provides the liquid cooling servo motor which is easier to control the processing precision, reasonable in working procedure, better in sealing performance and higher in strength.
The invention solves the problems by adopting the following technical scheme: the utility model provides a liquid cooling servo motor, includes casing and stator, the inner wall of casing on an organic whole be formed with the cooling recess, it still includes by high strength, high thermal conductivity material make and set up the inner liner between casing and stator, the inner liner be cylindric, the casing with the inner liner between through along the welding route welded fastening as an organic whole of inner liner inner wall so that the outer peripheral face of inner liner with the cooling recess between enclose and close and form the continuous cooling channel that supplies the coolant circulation, the casing with the inner liner constitute the fixed ring cover of integral type component in the periphery of stator.
Compared with the prior art, the invention has the advantages that: the liquid cooling servo motor adopts a three-layer annular sleeve mode of a stator, an inner bushing and a shell, wherein the inner bushing is a cylinder made of high-strength and high-thermal conductivity materials, and the shell and the inner bushing are welded and fixed into a whole through a preset welding route along the inner wall of the inner bushing so that a continuous cooling channel for cooling medium circulation is formed by enclosing the outer peripheral surface of the inner bushing and a liquid cooling groove. Therefore, the cast shell and the mechanically added inner bushing can be welded and fixed in advance, and the working procedure is more optimized. And because the shell is not directly sleeved outside the stator, the machining precision is easier to control, and the strength of the parts such as the water nozzle or the support leg of the cast shell can be ensured to be enough. And then the integrated component fixing ring formed by the shell and the inner bushing is sleeved on the periphery of the stator in a natural way, so that the supporting effect between the stator and the bushing is better, the bulge is not easy to occur, the overall strength is better, the mode that the sealing performance is better and the preset welding route of the inner wall of the sleeve is welded and fixed into a whole is more that the appearance of the servo motor is free of welding spots, the appearance is more attractive, the high water pressure can be born by enough strength, and the water leakage phenomenon is not easy to occur. An integral component fixing ring formed by the shell and the inner bushing is sleeved outside the stator.
Drawings
FIG. 1 is a schematic diagram of a liquid-cooled servomotor according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view of a liquid-cooled servomotor according to the present invention.
FIG. 3 is a schematic diagram of another embodiment of a liquid-cooled servomotor of the present invention.
In fig. 1-3: 1 casing, 1.1 cooling channel, 2 stators, 3 inner liner, 3.1 first circular welding route, 3.2 second circular welding route, 3.3 cooling welding route.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 3 of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present patent protection.
The utility model provides a liquid cooling servo motor, including stator 2 and casing 1, be formed with the cooling recess on the inner wall of casing 1 an organic whole, it still includes by high strength, high thermal conductivity material and set up the inner liner 3 between casing 1 and stator 2, inner liner 3 is cylindric, through the predetermined welding route welded fastening as an organic whole along inner liner 3 inner wall between casing 1 and the inner liner 3 so that enclose between the outer peripheral face of inner liner 3 and the cooling recess and form the continuous cooling channel 1.1 that supplies the cooling medium to circulate, the fixed ring cover of the integral type component that casing 1 and inner liner 3 constitute in the periphery of stator 2.
The casing 1 is generally cast by adopting an aluminum alloy material, and the cooling grooves, the support legs, the water nozzles and the like are formed by uniform casting, so that the strength of the water nozzles, the support legs and the like of the cast casing is ensured to be enough.
Fig. 1 provides an embodiment of a welding route: the casing 1 and the inner bush 3 are welded and fixed into a whole through a plurality of annular welding routes arranged at intervals along the inner wall of the inner bush 3.
Two examples of welding routes are provided below:
first, fig. 2 provides that one end of the inner liner 3 is welded and fixed with the casing 1 into a whole through a first circular welding route 3.1 along the inner wall, the other end of the inner liner 3 or a position close to the other end is welded and fixed with the casing 1 into a whole through a second circular welding route 3.2 along the inner wall, and the first circular welding route 3.1 and the second circular welding route 3.2 are both arranged at a position far away from the fixed part of the stator 2. Therefore, the cast shell and the mechanically added inner bushing can be welded and fixed in advance, and the working procedure is more optimized.
Second, fig. 3 provides another embodiment of a welding route, and the inner liner 3 is welded and fixed with the casing 1 into a whole through a welding route having a cooling shape provided on the inner wall. The welding route is mainly arranged at the joint between the inner bushing 3 and the stator, the smoothness of the inner wall can be influenced after welding, and the inner diameter can be machined after welding is finished.
The inner wall of the casing 1 is provided with a positioning step matched with the end face of one end of the inner bushing 3, and one end of the inner bushing 3 is welded and fixed with the casing 1 into a whole through a circular welding route.
In this embodiment, the housing is cast from an aluminum alloy and the inner liner is made from an aerospace aluminum material. In the practical application process, the inner lining can also be cast, and the inner lining can also be made of copper materials.
A manufacturing process of a liquid cooling servo motor comprises the following steps:
1) The shell is cast by aluminum alloy, and a cooling groove is integrally formed on the inner wall;
2) Machining the inner diameter of the shell by a lathe;
3) Machining the outer diameter of the inner bushing by a lathe;
4) Tightly matching the shell and the inner bushing;
5) Welding the shell and the inner bushing into a whole along a preset welding route of the inner wall of the inner bushing;
6) Machining the inner diameter of the inner bushing by a lathe;
7) The integral component formed by the inner bushing and the shell is tightly fixed on the periphery of the stator.
Adopting the manufacturing process, firstly adopting aluminum alloy to cast the shell, simultaneously adopting cooling grooves, supporting legs, water nozzles and the like to cast uniformly, sequentially machining the inner diameter of the shell and the outer diameter of the inner bushing by a lathe, tightly matching the shell and the inner bushing together, adopting a hot jacket or press fit mode, and then welding the shell and the inner bushing into a whole along a preset welding route of the inner wall of the inner bushing, wherein the preset welding route can be a plurality of annular welding routes or spiral welding routes which are arranged at intervals, and particularly can be carried out in a friction welding mode; because the shell is not directly sleeved outside the stator, the machining precision is easier to control. And then the inner diameter of the inner bushing is machined by a lathe, and then the inner bushing and an integrated component formed by the shell are tightly matched and fixed on the periphery of the stator, so that the supporting effect between the stator and the bushing is better, the bulge is not easy to occur, the overall strength is better, the mode that the sealing performance is better and the preset welding route of the inner wall of the sleeve is welded and fixed into a whole is more that the appearance of the servo motor is provided with no welding spots, the appearance is more attractive, the high water pressure can be borne by enough strength, and the water leakage phenomenon is not easy to occur.
The foregoing is illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims.
Claims (4)
1. The utility model provides a manufacturing process of liquid cooling servo motor, liquid cooling servo motor include casing and stator, the inner wall of casing on be formed with cooling groove, its characterized in that:
the inner bushing is made of high-strength and high-heat-conductivity materials and is arranged between the shell and the stator, the inner bushing is cylindrical, the shell and the inner bushing are welded and fixed into a whole through a preset welding route along the inner wall of the inner bushing, so that a continuous cooling channel for cooling medium circulation is formed by surrounding between the outer peripheral surface of the inner bushing and the cooling groove, and an integral component fixing ring formed by the shell and the inner bushing is sleeved on the outer periphery of the stator;
the manufacturing process of the liquid cooling servo motor comprises the following steps:
1) The shell is cast by aluminum alloy, and a groove is integrally formed on the inner wall;
2) Machining the inner diameter of the shell by a lathe;
3) Machining the outer diameter of the inner bushing by a lathe;
4) Tightly matching the shell and the inner bushing;
5) Welding the shell and the inner bushing into a whole along a preset welding route of the inner wall of the inner bushing; the preset welding route is a plurality of annular welding routes or spiral welding routes which are arranged at intervals;
6) Machining the inner diameter of the inner bushing by a lathe;
7) The integral component formed by the inner bushing and the shell is tightly fixed on the periphery of the stator.
2. The manufacturing process of the liquid-cooled servomotor according to claim 1, wherein: one end of the inner bushing is welded and fixed with the casing into a whole through a first circular welding route arranged along the inner wall, the other end of the inner bushing or the position close to the other end is welded and fixed with the casing into a whole through a second circular welding route arranged along the inner wall, and the first circular welding route and the second circular welding route are arranged at the position far away from the stator fixing part.
3. The manufacturing process of the liquid-cooled servomotor according to claim 1, wherein: the inner wall of the shell is provided with a positioning step matched with the end face of one end of the inner bushing, and one end of the bushing is welded and fixed with the shell into a whole through a circular welding route.
4. The manufacturing process of the liquid-cooled servomotor according to claim 1, wherein: the shell is formed by casting aluminum alloy, and the inner bushing is made of aviation aluminum material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710116104.2A CN106849468B (en) | 2017-03-01 | 2017-03-01 | Liquid cooling servo motor and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710116104.2A CN106849468B (en) | 2017-03-01 | 2017-03-01 | Liquid cooling servo motor and manufacturing process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106849468A CN106849468A (en) | 2017-06-13 |
| CN106849468B true CN106849468B (en) | 2024-03-29 |
Family
ID=59137766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710116104.2A Active CN106849468B (en) | 2017-03-01 | 2017-03-01 | Liquid cooling servo motor and manufacturing process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106849468B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11509190B2 (en) | 2017-11-20 | 2022-11-22 | Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | Motor and method of producing the same |
| CN110545011A (en) * | 2018-05-28 | 2019-12-06 | 约克（无锡）空调冷冻设备有限公司 | Motor assembly and refrigerating system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS62110461A (en) * | 1985-11-08 | 1987-05-21 | Mitsubishi Electric Corp | Manufacture of motor frame |
| JP2002354753A (en) * | 2001-05-30 | 2002-12-06 | Nissan Motor Co Ltd | Rotating electric machine |
| JP2006296005A (en) * | 2005-04-06 | 2006-10-26 | Honda Motor Co Ltd | Liquid-cooled motor |
| WO2007072536A1 (en) * | 2005-12-19 | 2007-06-28 | Hitachi, Ltd. | Rotor for permanent magnet generator for gas turbine, method of producing the rotor, gas turbine, and method of producing the gas turbine |
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| JPS62110461A (en) * | 1985-11-08 | 1987-05-21 | Mitsubishi Electric Corp | Manufacture of motor frame |
| JP2002354753A (en) * | 2001-05-30 | 2002-12-06 | Nissan Motor Co Ltd | Rotating electric machine |
| JP2006296005A (en) * | 2005-04-06 | 2006-10-26 | Honda Motor Co Ltd | Liquid-cooled motor |
| WO2007072536A1 (en) * | 2005-12-19 | 2007-06-28 | Hitachi, Ltd. | Rotor for permanent magnet generator for gas turbine, method of producing the rotor, gas turbine, and method of producing the gas turbine |
| JP2008301646A (en) * | 2007-06-01 | 2008-12-11 | Aichi Electric Co Ltd | Motor cooling apparatus |
| JP2009082929A (en) * | 2007-09-27 | 2009-04-23 | Jfe Container Co Ltd | Inner tool device for circumferential welding and method of circumferential welding using the same |
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| CN201323493Y (en) * | 2008-11-27 | 2009-10-07 | 华南理工大学 | Spiral groove cooling channel structure in electric main shaft |
| WO2012113432A2 (en) * | 2011-02-25 | 2012-08-30 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Method for producing a pole housing |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106849468A (en) | 2017-06-13 |
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Effective date of registration: 20190225 Address after: 315151 No. 109, Siming East Road, Yinjiang Town, Haishu District, Ningbo City, Zhejiang Province Applicant after: NINGBO WOLF ELECTRO-MECHANICAL Co.,Ltd. Address before: 3151 No. 111 Siming East Road, Yinjiang Town, Yinzhou District, Ningbo City, Zhejiang Province Applicant before: NINGBO TENGLONG OUTDOOR IMPLEMENT Co.,Ltd. |
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